JPS5622910A - Distance detector - Google Patents
Distance detectorInfo
- Publication number
- JPS5622910A JPS5622910A JP9903779A JP9903779A JPS5622910A JP S5622910 A JPS5622910 A JP S5622910A JP 9903779 A JP9903779 A JP 9903779A JP 9903779 A JP9903779 A JP 9903779A JP S5622910 A JPS5622910 A JP S5622910A
- Authority
- JP
- Japan
- Prior art keywords
- light
- lens system
- slit aperture
- photodetected
- flash
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Length Measuring Devices By Optical Means (AREA)
- Measurement Of Optical Distance (AREA)
Abstract
PURPOSE: To take accurate distance measurement by detecting a photodetector that has the maximum quantity of photodetected light by reducing a narrowed-down flash from a light emission unit through a slit aperture and by comparing it to a reference voltage that decreases according to respective quantities of photodetected light of a group of photodetectors arrayed in a light at right angles to the slit hole.
CONSTITUTION: Light emission part 1 is provided with flash discharge tube 2, reflective umbrella 3, slit aperture 4, and lens system 5 and a flash passed through slit aperture 4 is narrowed down by lens system 5 into a thin beam. Light reflected by measured object 6 is photodetected by the photodetector that includes lens system 9 and a group of photodetecting elements arrayed at right angles to slit aperture 4. Interval AD between light emission part 1 and photodetection part 7 and focal distance DE of lens system 9 of photodetection part 7 are freely set, so that the distance can easily be measured by finding while photodetecting element in photodetecting element group 8 has detected the reflected light from the unknown object.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9903779A JPS5856809B2 (en) | 1979-08-02 | 1979-08-02 | distance detection device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9903779A JPS5856809B2 (en) | 1979-08-02 | 1979-08-02 | distance detection device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5622910A true JPS5622910A (en) | 1981-03-04 |
JPS5856809B2 JPS5856809B2 (en) | 1983-12-16 |
Family
ID=14236222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9903779A Expired JPS5856809B2 (en) | 1979-08-02 | 1979-08-02 | distance detection device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5856809B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61218908A (en) * | 1985-03-25 | 1986-09-29 | Matsushita Electric Works Ltd | Photoelectric object detecting device |
JPS6247508A (en) * | 1985-08-27 | 1987-03-02 | Fuji Photo Film Co Ltd | Optical device for range finding |
JPH03257305A (en) * | 1990-03-08 | 1991-11-15 | Toyo Denki Kk | Inspecting method of mounting of chip parts |
-
1979
- 1979-08-02 JP JP9903779A patent/JPS5856809B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61218908A (en) * | 1985-03-25 | 1986-09-29 | Matsushita Electric Works Ltd | Photoelectric object detecting device |
JPS6247508A (en) * | 1985-08-27 | 1987-03-02 | Fuji Photo Film Co Ltd | Optical device for range finding |
JPH03257305A (en) * | 1990-03-08 | 1991-11-15 | Toyo Denki Kk | Inspecting method of mounting of chip parts |
Also Published As
Publication number | Publication date |
---|---|
JPS5856809B2 (en) | 1983-12-16 |
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